A tracheal intubation device includes a handle portion, a display unit, a bar-shaped camera, and a guiding portion. The display unit is electrically connected to the bar-shaped camera. The bar-shaped camera is used for capturing images and includes a camera rear end and a camera front end. The camera rear end is electrically connected to the display unit for displaying images captured by the bar-shaped camera. The camera front end has a bended portion. The guiding portion includes a front end and a rear end, wherein the front end is detachably connected to the handle portion. The guiding portion is used for accommodating the bar-shaped camera and the endotracheal tube to allow the bar-shaped camera and the endotracheal tube to move within the guiding portion.